burggrabe



Jan. 15, 1952 H. A. BURGGRABE 2,582,766

VENDING MACHINE Filed July 22, 1948 3 Sheets-Sheet l .a Y e s, d E mw fww 14N/Mmm lf|| 134 l- A N .y n @lfm/ww; E? M 4" E n ZI.- W 7 HL l.. i i,m .A W @il 0 d E i Z Jan. l5, 1952 H. A. BURGGRABE VENDING MACHINE 3Sheets-Sheet 2 Filed July 22, 1948 INVENTOR. /L//fr 61,5203

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Jan. 15, 1952 H. A. .BURGGRAB'E 2,582,766

' VENDING MACHINE Filed July 22, 1948 3 Sheets-Sheet 3 prevent itsbecoming-jammed:-

Patented Jan. 15, 1952 2,582,166 vNING Meern N' E F."IL Jacobs Co.,

of Michigan Detroit, Mich., a corporation serine atveneingfoperau ine..dar- `fine."whic,11-,-it. is movdioen enen notien-simulvtaneously,witlptheedelivery ofl a vended article throughthe-deliverychutes; a@ M Another-1fobjectfof,Y theinyention. 1s`iImproved.,vendingsmacninef,inclndinggm ansffor fautomaticallylshutting gli fthe ,machine upon vthe normal, delivery eff;ended;article,-,andxother `means eiective upon fthespartialorffaultydelivh "eryfof`y` a` vended-article,euchfassmay he caused 'Y-vbyrfnne tampering with. theymachine.,- or vfother- .Wise-l;I to.automaticallyashuteoi the machine' and .a Ai-,furtheruobjectaof thepresen-t yinvention visnt() v4prov-idealiimproved@*vendingmaohinencluding Q .anaelectric ymotor having a:ther-maln responsive circuit-controllingtfmeans `adapted etc4 open-thecircuit-fiso-t the :motor whenYAY the lattergbecomes to nro 'de an :z

v-overheated, and a -coinV` se1eetor--mechanism, -v including VUanelectromagnet adaptedfwhen -energized to permitafcvoin-to be'selecteddoractuating `the machine,A vandin which-.the thermal respon#sive oircuitecontrol-Iing `,means lisconnected .inseriesrwithjA the.`electromagnet preventing the latter-from beingenergized..whenfthe-zcircu-itfto the r,tially along the einen@:illustrated 1n-ne, s taken e :.-e f, s 1 steal the articles fromtheimachinesm-f: f

Other, and more ldetailedrnbjects ,ofy theiinvention .willbecomeapparent from aconsideration of he `fallowing sper`;i ficai.on,ilthe, appendedelaims and the; Vaccompanying drawings, throughout-.theSeveral views of: v,which like -reference charactersdesignate,likesparts,v andfwhereinz-'i s Figureflffisam elevational.view .of a vvendi-ng maehineembodying the-,presentinventiom showing theloading doorini its Eopeniposition.;

,.-Eig.f 2E isa front.; elevation of the construction e constructionillustra-ted, in'fF'ig.-^1,` taken subconstruction illustratedin Eig. 3.taken substan- V lines 4-4 and 5-5 thereof, relf3-56155) ''1"1'\, i,-:siff if is an; enlarged@ vbroken sectional view, q ofStantallyalongrthefline'ffs'thereof; Fig. 7 is a brokensectionalftvewoffthenconsubstantially alena the-.line 1.;,-1;1Aliereoff, w.: i i l Fig; 8 is an,enlarged@-brokengsectionalview larftoy-Fig. A:-i-llustrating i a. position assumed bythe" various partsduring delivery of a vended g.y 9 Ais A a ,q schema 'c .Wiring .diagramshowing f jt'rinterconnecting the thermal-1re'- Lcircuitvoontzrollingmeans associated motor and the;electromagnetfoztlie coin selector.mechanism which musiI be energized prior togtheselectorr-,of a, coin bythemechar-iism;` --1 fwtggwillabe appreciated byl those' skilledl in4the art that/improvements ',of'rthe present 'invention,xnayehe',rea'dily` incorporated in vending machines sofWidelyrdiffering ,types1andconstructions fg In yan1,4 illustrativefbutenotf=in1a limiting: sense;the improvementsof fthe present `inventionvare herein illustrated-fand describedv in -connection 'witha-bottle-dspensing machine of fthe type commonlygemployed inthe-vendingof soft drinkenv :t1-Referring:f-:toathe i drawings, L- the.vendingr )machineoffthe present invention generally.` conflprises lacabinetf havinga-nzupperg-loading door22and a-,lower `access` door 24;suitable refrigeration `equipment` mounted fing-the flowerr-portion of.the Acalzrinetff` 20 (not shown) s; a1 drum 'housing 2B mountedlingjaheupperportion offthe" cabinet, in' a, lconventional;inclinedyposition leest -y illustrated in Ria-:#2, anda-supperting "a 1partitioned. drum f 2s gadanbedgztofalrygthe-gbottles `to be vendednand'a moines-f ....Qrivinglyf ennectedffbovihe drum 218 asp-hereinafterdescribed for indexingJ-thelatter leefyveeir;V a" plurality of; vendingpositions;` and :prei/lilies. et:.ielitriinh,uieikseeliigafl v throughwhich vended articles are delivered from the drum 2S, and a coinselector mechanism 34 mounted on the cabinet 20 and adapted to controlthe operation of the motor 36 for indexing the drum 28.

In spaced relation to the coin selector mechanism 34 the cabinet 2D hasa bottle delivery station 36 where a vended bottle is received from thedelivery chute 32 of the drum housing 26 and delivered to the outside ofthe cabinet 20 through l a door 38 which is pivotally mounted andyieldably held in a normally closed position. .The lower portion of thecabinet 20 houses lsuitable refrigeration equipment (not shown) for maintaining the interior of the cabinet at a predetermined desiredtemperature, and may also in part serve as a storage area for precoolingbottles which may be later loaded into the drum 28 and vended by themachine.

The drum 28 is of the partitioned construction usual in bottle-vendingmachines of this type and carries a centrally disposed ring gear 40secured to its outer periphery. As best illustrated in Fig. 6, the ringgear 40 is driven by a pinion 42 which is connected to a worm gear 44for rotation therewith. The gear 44 is driven by a worm 46 connected tothe output shaft of the motor 38. The worm 46 and the worm gear 44 areof a conventional design in which the gear 44 may be readily drivenbythe worm 46 but the reverse is not true and the worm 45 may not bedriven by the worm gear 44. Accordingly it will be appreciated that theabove described drive mechanism affords a mechanical lock preventingrotation of the drum 28 by directly engaging the drum manually orotherwise.

At its inner or right-hand end, as viewed in Figs. 2 and 3, the drum 28is provided with an axially extending iiange 48 having a plurality ofequally spaced notches 50 individual to and corresponding to the drumspaces dened by the partitions 52 thereof.

An inner door or shutter 54, normally closing the delivery chute 32, isslidably mounted on a pair of spaced brackets 56 secured to the drumhousing 26 for sliding movement between the normally closed positionillustrated in Figs. 3, 4, and 7, in which it closes the delivery chute32, and the raised or open position illustrated in Fig. 8, in which avended bottle may pass through the delivery chute 32. The spaced guideplates 56 are disposed onopposite sides of the delivery chute 32 andhave outwardly turned flanges 5B which are welded or otherwise suitablysecured to the drum housing 26. The. inner edges of the .guide brackets5S are disposed on parallelv arcs about centers lying in the axis of thedrum 28 and terminate in outwardly extending guide flanges 68 which arereceived within reversely turned side portions 52 of the shutter `54 toslidably mount the latter on the guide brackets 56.

For raising the shutter 54 from the above described closed position tothe raised or open position illustrated in Fig. 8, a latch arm 64 ispivotally mounted intermediate its ends on a pivot pin G6 mounted on theshutter 54 and extending parallel to the axis of the drum 28 andlaterally outwardly from one side of the shutter ,4 64 to pivot in aclockwise direction about the pivot pin 66 (as viewed in Fig. 4) whichserves to urge the hook portion .6,8 of the latch arm 64 against thedrum 28`and into the slots 50 provided therein.

It will now be appreciated that when the drum 28, which travels in aclockwise direction as viewedin Fig. 4, is driven by the motor 30, the

shutter 54,will be raised through its connection to the drum 28v by thelatch arm 64. As the drum 28 approaches the end of each indexingmovement'the latch G4 is pivoted in a counterclockwise direction asviewed in Fig. 4 and the hook portion 68 thereof is withdrawn from theslot 50 in the drum 28. This movement of the latch arm 64 is effected byaA stop member 12 xed on a wire 14 which'extends through an element 16pivotally mounted on the latch arm 64 atthe opposite end thereof withrelation to the hook portion, 68. The element 1B is adapted to slidealong the wire 14 during the upward movement of the shutter 54 and toengage the stop member 12 at the upper end of the wire 14 wherebycontinued upward movement of the shutter 54 effects the above mentionedcounterclockwise movement of the latch arm 64 and withdraws the hookportion 68 thereof from the slot 5B of the drum 28. If at this time thedelivery chute 32 is unobstructed, the force of gravity acting on theshutter 54 will cause it and the. latch arm 54 carried thereby to returnto their closed position, it being further appreciated that as the latcharm 64 approaches this normally closed position the spring 10 actingthereon urges the hook portion 68 thereof into the next slot 50.

To insure that this counterclockwise pivotal movement of the' latch arm84 occurs at the proper time, an abutment 13 is xed to the cabinet 20,as illustrated in Figures 4 and 8, in position to engage the latch arm54 below the pivot pin 5t and effect such movement. If desired, thismovement may be effected entirely by the stop 13 and the stop 12'employed only as hereinafter described in loading the drum 28.

The construction of the machine and the proportioning of the variousp-arts thereof are such that during an indexing movement of the drum 28and substantially at the same time as the hook portion 68 of the latcharm 64 is released from the drum 28, but slightly prior thereto, avended bottle is discharged from the adjacent partitioned sector of thedrum 28 as it moves into alignment with the delivery chute 32. As thisvended bottle moves into the delivery chute it trips a shut-oirmechanism generally indicated at 18 which stops the motor 30 after thehook portion S8 o the latch arm 64 is withdrawn from the notch 5D of thedrum. -This shut-off mechanism 'd8 is mounted on the underside of thechute 32 and projects upwardly into the chute 32 through an aperture 88therein.

The shut-olf mechanism 18 comprises a stationary bracket 82 secured tothe underside of the delivery chute 32 adjacent the aperture 80 by apair of screws 84 and having a pair of spaced downwardly projecting tabs86 which support a pivot pin 88 disposed at right angles to the deliverychute 82. A trip lever 89 is pivotally mounted on the pivot pin 63 andprojects upwardly through the aperture 8i) into the delivery chute' 32.This trip lever 89 is adapted to be engaged by a vended bottle as itpasses through the delivery chute 32 and to be pivoted thereby from theupright position illustrated in Fig. 5

being movable in one direction to facilitate loading thereof witharticles to be vended, av

delivery chute, means operable to move said means in said one direction,index said means and deliver avended article through said deliverychute, a shutter operable to open and close said chute, means mounted onsaid shutter and engaged by said rst named means to move said shutter toopen said chute, said last named means normally engaging said rst namedmeans, between operations of the latter, to hold said shutter inposition to close said chute, and means for withdrawing said last namedmeans from engagement with said first named means to preventinterference of said last named means with said rst named means duringmovement thereof while loading said rst named means with articles to bevended.

2. A vending machine comprising means for supporting the articles to bevended, said means being movable in one direction to facilitate loadingthereof with articles to be vended, a delivery chute, means operable tomove said means in said one direction, index said means and deliver avended article through said delivery chute, a shutter operable to openand close said chute, means mounted on said shutter and engaged by saidrst named means to move said shutter to open said chute, said last namedmeans normally engaging said iirst named means, between operations ofthe latter, to hold said shutter in position to close said chute, andmeans for withdrawing said last named means from engagement with saidiirst named means and holding the former out of engagement with thelatter to prevent interference of said last named means with said iirstnamed means during movement thereof while loading said rst named meanswith articles to be vended.

f 3. A vending machine comprising la rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, a latch mounted on said shutter andnormally engaging said drum at one of said notches, and means effectivein response to an indexing of said drum for withdrawing said latch fromsaid one of said notches.

4. A vending machine comprising a rotatablyv mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveyingv vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, a latch mounted on said shutter andnormally engaging said drum at one of said notches, and means eil'ectivein response to an indexing of said drum for disengaging said latch fromone of said notches and engaging said latch in another of said notches.

5. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute lfor conveying vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute and a latch mounted on said shutter andnormally engaging said drum at one of said notches, whereby upon anindexing movement of said drum said shutter is moved to open said chutesimultaneously with the delivery of a vended article through saiddelivery chute.

f6. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, and a latch mounted on said shutter andnormally engaging said drum at one of said notches, whereby uponindexing movement of said drum said shutter is moved to open said chutesimultaneously with the delivery of a vended article through saiddelivery chute, said latch being effective, when received in one of saidnotches, for preventing movement of said shutter relative to said drum.

7. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles .to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, a latch mounted on said shutter andnormally engaging said drum at one of said notches, whereby upon anindexing movement of said drum said shutter is moved to open said chutesimultaneously with the delivery of a vended article through saiddelivery chute, said latch being effective, when received in one of saidnotches, for preventing movement of said shutter relative to said drum,and said first named means being so constructed and arranged as toprevent rotation of said drum by directly engaging the latter.

8. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, a latch mounted on said shutter andnormally engaging said drum at one of said notches, whereby upon anindexing movement of said drum said shutter is moved to open said chutesimultaneously with the delivery of a vended article through saiddelivery chute, said latch being effective, when received in one of saidnotches, for preventing movement of said shutter relative to said drum,and means effective upon completion of an indexing movement of said drumfor disengaging said latch from one of said notches and engaging saidlatch in another of said notches.

9. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, a latch pivotally mounted on said shutterand normally engaging said drum at one of said notches, and meanseiective in response to an indexing of sa1d drum for withdrawing saidlatch from said one of said notches, said last named means comprisingstop means adapted to engage said latch on the opposite side of itspivotal connection to said shutter from its engagement with said drum asthe latter completes an indexing movement, to pivotally move said latchin a direction to withdraw it fromy said one of said notches.

l0. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means for indexing said drum and discharging a vended articlefrom said drum into said delivery chute, a shutter disposed in andnormally closing said chute, a latch pivotally mounted on said shutterand normally engaging said drum at one of said notches, and meanseffective in response to an indexing of said drum for moving said latchto another of said notches, said last named means comprising stop meansadapted to engage said latch on the opposite side of its pivotalconnection to said shutter from its engagement with said drum as thelatter completes an indexing movement, to pivotally move said latch in adirection to withdraw it from said one of said notches, means forguiding said shutter to its normally closed position and sp-ring meansyieldably urging said latch to pivotally move in the opposite direction.

11. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means including electric drive means for indexing said drum anddischarging a vended article from said drum into said delivery chute, ashutter disposed in and normally closing said chute, a latch mounted onsaid shutter and normally engaging said drum at one of said notches, abracket pivotally mounted on said machine, electric switch means mountedon said bracket adapted to control said drive means, and to be actuatedby pivotal movement of said bracket, and means operatively connectingsaid bracket and shutter whereby movement of said shutter beyond itsnormal travel during an indexing movement, will pivotally move saidbracket to actuate said switch means and stop said drive means toprevent jamming of said machine.

12. A vending machine comprising a rotatably mounted drum adapted tocarry articles to be vended and having notches adjacent its periphery, adelivery chute for conveying vended articles to the outside of saidmachine, means including electric drive means ior indexing said drum anddischarging a vended article from said drum into said delivery chute, ashutter disposed in and normally closing said chute, a latch mounted onsaid shutter and normally engaging said drum at one of said notches, abracket pivotally mounted on said machine, electric switch means mountedon said bracket adapted to control said drive means, and to be actuatedby pivotal movement of said bracket, a trip adapted to be actuated by avended article delivered through said chute and effective to pivotallymove said bracket to actuate said switch means, and means operativelyconnecting said bracket and shutter whereby movement of said shutterbeyond its normal travel during an indexing movement, will pivotallymove said bracket to actuate said switch means and stop said drive meansto prevent jamming of said machine.

13. A control mechanism for a vending machine having a drum adapted tocarry articles to be vended, means including electric drive means forindexing said drum and delivering vended articles from said machine, anda shutter movable between a normally closed position and an openposition to which it is moved in normal delivery of vended articles,said control mechanism comprising a normally closed electric switchadapted to control the electric circuit to said electric drive means,means adapted to be actuated by a vended article in the normal deliverythereof to open said switch and lstop said electric drive means, andmeans adapted to be actuated by a partially delivered article, uponcontinued movement of said drum to effect movement of said shutterbeyond said open position and open said switch to stop said electricdrive means.

14. A control mechanism for a vending machine having a drum adapted tocarry articles to be vended and means including electric drive means forindexing said drum and delivering vended articles from said machine,said control mechanism comprising a normally closed electric switchadapted to control the electric circuit to said electric drive means,means adapted to be actuated by a normally delivered vended article toopen said switch and stop said electric drive means, and means adaptedto be actuated by a partially delivered vended article which isineffective to actuate said last named means upon continued movement ofsaid drum, to open said switch and stop said electric drive means.

HENRY A. BURGGRABE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 914,993 Thexton Mar. 9, 19091,975,364 Kindred et al. Oct. 2, 1934 2,078,984 Williamson May 4, 19372,273,948 Forslund et al Feb. 24, 1942 2,280,323 Tone Apr. 21, 19422,285,068 Titus June 2, 1942 2,360,241 Kuhl Oct. 10, 1944 2,464,737Wellekens Mar. 15, 1949 FOREIGN PATENTS Number Country Date 82,214Germany of 1894 137,345 France of 1930

